1 files changed, 146 insertions, 0 deletions
diff --git a/services/sync/tps/extensions/mozmill/resource/stdlib/withs.js b/services/sync/tps/extensions/mozmill/resource/stdlib/withs.js
new file mode 100644
index 000000000..baa3d18d6
--- /dev/null
+++ b/services/sync/tps/extensions/mozmill/resource/stdlib/withs.js
@@ -0,0 +1,146 @@
+/*
+    Copyright (c) 2006 Lawrence Oluyede <l.oluyede@gmail.com>
+
+    Permission is hereby granted, free of charge, to any person obtaining a copy
+    of this software and associated documentation files (the "Software"), to deal
+    in the Software without restriction, including without limitation the rights
+    to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+    copies of the Software, and to permit persons to whom the Software is
+    furnished to do so, subject to the following conditions:
+
+    The above copyright notice and this permission notice shall be included in all
+    copies or substantial portions of the Software.
+
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+    SOFTWARE.
+*/
+
+/*
+ startsWith(str, prefix[, start[, end]]) -> bool
+
+ Return true if str ends with the specified prefix, false otherwise.
+ With optional start, test str beginning at that position.
+ With optional end, stop comparing str at that position.
+ prefix can also be an array of strings to try.
+*/
+
+var EXPORTED_SYMBOLS = ['startsWith', 'endsWith'];
+
+function startsWith(str, prefix, start, end) {
+    if (arguments.length < 2) {
+        throw new TypeError('startsWith() requires at least 2 arguments');
+    }
+
+    // check if start and end are null/undefined or a 'number'
+    if ((start == null) || (isNaN(new Number(start)))) {
+        start = 0;
+    }
+    if ((end == null) || (isNaN(new Number(end)))) {
+        end = Number.MAX_VALUE;
+    }
+
+    // if it's an array
+    if (typeof prefix == "object") {
+        for (var i = 0, j = prefix.length; i < j; i++) {
+            var res = _stringTailMatch(str, prefix[i], start, end, true);
+            if (res) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    return _stringTailMatch(str, prefix, start, end, true);
+}
+
+/*
+ endsWith(str, suffix[, start[, end]]) -> bool
+
+ Return true if str ends with the specified suffix, false otherwise.
+ With optional start, test str beginning at that position.
+ With optional end, stop comparing str at that position.
+ suffix can also be an array of strings to try.
+*/
+function endsWith(str, suffix, start, end) {
+    if (arguments.length < 2) {
+        throw new TypeError('endsWith() requires at least 2 arguments');
+    }
+
+    // check if start and end are null/undefined or a 'number'
+    if ((start == null) || (isNaN(new Number(start)))) {
+        start = 0;
+    }
+    if ((end == null) || (isNaN(new Number(end)))) {
+        end = Number.MAX_VALUE;
+    }
+
+    // if it's an array
+    if (typeof suffix == "object") {
+        for (var i = 0, j = suffix.length; i < j; i++) {
+            var res = _stringTailMatch(str, suffix[i], start, end, false);
+            if (res) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    return _stringTailMatch(str, suffix, start, end, false);
+}
+
+/*
+ Matches the end (direction == false) or start (direction == true) of str
+ against substr, using the start and end arguments. Returns false
+ if not found and true if found.
+*/
+function _stringTailMatch(str, substr, start, end, fromStart) {
+    var len = str.length;
+    var slen = substr.length;
+
+    var indices = _adjustIndices(start, end, len);
+    start = indices[0]; end = indices[1]; len = indices[2];
+
+    if (fromStart) {
+        if (start + slen > len) {
+            return false;
+        }
+    } else {
+        if (end - start < slen || start > len) {
+            return false;
+        }
+        if (end - slen > start) {
+            start = end - slen;
+        }
+    }
+
+    if (end - start >= slen) {
+        return str.substr(start, slen) == substr;
+    }
+    return false;
+}
+
+function _adjustIndices(start, end, len)
+{
+	if (end > len) {
+	    end = len;
+	} else if (end < 0) {
+	    end += len;
+	}
+
+    if (end < 0) {
+        end = 0;
+    }
+	if (start < 0) {
+	    start += len;
+	}
+	if (start < 0) {
+		start = 0;
+	}
+	
+	return [start, end, len];
+}